‘House of the Dragon’ Season 3 Premiere Kills Off Major Character in Shocking Battle Scene

The opening episode of House of the Dragon Season 3 didn’t pull any punches. In one of the series’ most gut-wrenching moments, beloved character Prince Jacaerys “Jace” Velaryon meets his end during the long-anticipated Battle of the Gullet, forcing actor Harry Collett to reflect on his emotional departure from the show.

When the Season 3 premiere aired on June 21, it threw viewers straight into the chaos of the Targaryen civil war. During the brutal clash, Jace rides his dragon Vermax into battle, only to suffer a devastating fate that shocks the audience and reshapes the entire conflict. The death becomes a turning point for Queen Rhaenyra and escalates the fight for the Iron Throne.

Collett has since opened up about the experience, revealing that he’d known about his character’s demise since day one. While it’s bittersweet to leave the role that defined his career since the show’s beginning, the actor expressed gratitude for how heroic and significant Jace’s exit turned out to be. He even joked about the physical toll of filming the underwater death scene—particularly the challenge of keeping his eyes open while submerged.

Emma D’Arcy, who plays Rhaenyra, also weighed in on the loss, calling it an “unquantifiable loss” that transforms her character. According to D’Arcy, the tragedy hardens Rhaenyra’s resolve, pushing her toward vengeance as the war intensifies.

The premiere wasn’t shy about casualties. Several major deaths made it one of the bloodiest episodes the franchise has ever produced. For readers familiar with George R.R. Martin’s Fire & Blood, Jace’s fate may have come as no surprise—but the emotional weight and scale of the Battle of the Gullet still managed to stun viewers.

Cast members had warned that Season 3 would be a “bloodbath,” and the premiere has already proven them right. As the conflict between the Blacks and the Greens escalates, the series shows no signs of slowing down on the tragedy ahead.